Differential susceptibility of Iowa waterhemp (Amaranthus tuberculatus) populations to 2,4-D, dicamba, and glufosinate

IF 1 4区农林科学 Q3 AGRONOMY

Canadian Journal of Plant Science Pub Date : 2023-09-15 DOI:10.1139/cjps-2023-0081

Ryan C. Hamberg, Ramawatar Yadav, Micheal D.K. Owen, Mark A. Licht

引用次数: 0

Abstract

Multiple herbicide-resistant waterhemp ( Amaranthus tuberculatus (Moq.) J.D. Sauer) has limited herbicide options for Iowa row crop production. Soybean ( Glycine max (L.) Merr.) cultivars and corn ( Zea mays L.) hybrids resistant to 2,4-D, dicamba, and glufosinate have provided more herbicide options for waterhemp management. A probability-based survey of Iowa fields was conducted in fall 2019 wherein waterhemp seeds were collected and their susceptibility to 2,4-D, dicamba, and glufosinate was determined. The average survival of all populations treated with 1× 2,4-D, dicamba, and glufosinate was 17%, 5%, and 4%, respectively. Seven percent of treated populations exhibited ≥50% survival to 1× rates of 2,4-D.

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爱荷华水麻(Amaranthus tuberculatus)种群对2,4- d、麦草畏和草铵膦的敏感性差异

多重抗除草剂水麻(Amaranthus tuberculatus, Moq.)J.D. Sauer)对爱荷华州行栽作物的除草剂选择有限。大豆(甘氨酸max (l))玉米品种和抗2,4- d、麦草畏和草铵膦的玉米杂交种为水麻管理提供了更多的除草剂选择。2019年秋季，对爱荷华州的农田进行了基于概率的调查，收集了水麻种子，并确定了它们对2,4- d、麦草畏和草铵膦的敏感性。1× 2,4- d、麦草畏和草铵膦处理的所有种群的平均存活率分别为17%、5%和4%。7%的治疗人群表现出≥50%的存活率至1倍的2,4- d。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Canadian Journal of Plant Science 生物-农艺学

CiteScore

1.90

自引率

8.30%

发文量

审稿时长

1 months

期刊介绍： Published since 1957, the Canadian Journal of Plant Science is a bimonthly journal that contains new research on all aspects of plant science relevant to continental climate agriculture, including plant production and management (grain, forage, industrial, and alternative crops), horticulture (fruit, vegetable, ornamental, greenhouse, and alternative crops), and pest management (entomology, plant pathology, and weed science). Cross-disciplinary research in the application of technology, plant breeding, genetics, physiology, biotechnology, microbiology, soil management, economics, meteorology, post-harvest biology, and plant production systems is also published. Research that makes a significant contribution to the advancement of knowledge of crop, horticulture, and weed sciences (e.g., drought or stress resistance), but not directly applicable to the environmental regions of Canadian agriculture, may also be considered. The Journal also publishes reviews, letters to the editor, the abstracts of technical papers presented at the meetings of the sponsoring societies, and occasionally conference proceedings.